Painful sex

Sex has been hurting since I lost my virginity. The pain is very excruciating. It doesn’t get better the more I do it. Fingering also doesn’t feel good. Idk why. I’m sure I’m touching the gspot. I only orgasm when touching my clit. Is it because I’m not aroused? I’m starting to think I have endometriosis because I also use to have heavy and painful periods before birth control. The pain from sex is more of a hurting sensation than a burning. What could I do?